#!/usr/bin/perl

#=======================================================================
# gotexp
# File ID: 1268bb2c-2988-11e5-9cd9-000df06acc56
#
# [Description]
#
# Character set: UTF-8
# ©opyleft 2015– Øyvind A. Holm <sunny@sunbase.org>
# License: GNU General Public License version 2 or later, see end of 
# file for legal stuff.
#=======================================================================

use strict;
use warnings;
use Getopt::Long;

local $| = 1;

our %Opt = (

    'help' => 0,
    'number' => 1,
    'quiet' => 0,
    'verbose' => 0,
    'version' => 0,

);

our $progname = $0;
$progname =~ s/^.*\/(.*?)$/$1/;
our $VERSION = '0.00';

Getopt::Long::Configure('bundling');
GetOptions(

    'help|h' => \$Opt{'help'},
    'number|n=i' => \$Opt{'number'},
    'quiet|q+' => \$Opt{'quiet'},
    'verbose|v+' => \$Opt{'verbose'},
    'version' => \$Opt{'version'},

) || die("$progname: Option error. Use -h for help.\n");

$Opt{'verbose'} -= $Opt{'quiet'};
$Opt{'help'} && usage(0);
if ($Opt{'version'}) {
    print_version();
    exit(0);
}

exit(main(%Opt));

sub main {
    # {{{
    my %Opt = @_;
    my $Retval = 0;
    my $count = 0;

    my $slurp = join('', <>);
    !length($slurp) && return(0);

    $slurp =~ s{
        (not\ ok\s.*?\n)
        .*?
        \s+got:\s+
        ('.*?'\n)
        \#\s+expected:\s+
        ('.*?'\n)
    }{
        my ($header, $got, $exp) = ($1, $2, $3);
        $count++;
        write_data($count, $Opt{'number'}, $header, $got, $exp);
    }egsx;

    return($Retval);
    # }}}
} # main()

sub write_data {
    # {{{
    my ($count, $number, $header, $got, $exp) = @_;
    if ($count == $Opt{'number'}) {
        $exp =~ s/^(.*?\n)(not )?ok .*$/$1/s;
        open(my $gotfh, ">got") or die("$progname: got: Cannot create file: $!\n");
        open(my $expfh, ">exp") or die("$progname: exp: Cannot create file: $!\n");
        print($gotfh $header . $got);
        print($expfh $header . $exp);
        close($gotfh);
        close($expfh);
    };
    return('');
    # }}}
} # write_data()

sub print_version {
    # Print program version {{{
    print("$progname v$VERSION\n");
    return;
    # }}}
} # print_version()

sub usage {
    # Send the help message to stdout {{{
    my $Retval = shift;

    if ($Opt{'verbose'}) {
        print("\n");
        print_version();
    }
    print(<<"END");

Usage: $progname [options] [file [files [...]]]

Options:

  -h, --help
    Show this help.
  -n X, --number X
    Skip to error number X.
  -q, --quiet
    Be more quiet. Can be repeated to increase silence.
  -v, --verbose
    Increase level of verbosity. Can be repeated.
  --version
    Print version information.

END
    exit($Retval);
    # }}}
} # usage()

sub msg {
    # Print a status message to stderr based on verbosity level {{{
    my ($verbose_level, $Txt) = @_;

    if ($Opt{'verbose'} >= $verbose_level) {
        print(STDERR "$progname: $Txt\n");
    }
    return;
    # }}}
} # msg()

__END__

# Plain Old Documentation (POD) {{{

=pod

=head1 NAME



=head1 SYNOPSIS

 [options] [file [files [...]]]

=head1 DESCRIPTION



=head1 OPTIONS

=over 4

=item B<-h>, B<--help>

Print a brief help summary.

=item B<-q>, B<--quiet>

Be more quiet. Can be repeated to increase silence.

=item B<-v>, B<--verbose>

Increase level of verbosity. Can be repeated.

=item B<--version>

Print version information.

=back

=head1 BUGS



=head1 AUTHOR

Made by Øyvind A. Holm S<E<lt>sunny@sunbase.orgE<gt>>.

=head1 COPYRIGHT

Copyleft © Øyvind A. Holm E<lt>sunny@sunbase.orgE<gt>
This is free software; see the file F<COPYING> for legalese stuff.

=head1 LICENCE

This program is free software; you can redistribute it and/or modify it 
under the terms of the GNU General Public License as published by the 
Free Software Foundation; either version 2 of the License, or (at your 
option) any later version.

This program is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along 
with this program.
If not, see L<http://www.gnu.org/licenses/>.

=head1 SEE ALSO

=cut

# }}}

# vim: set fenc=UTF-8 ft=perl fdm=marker ts=4 sw=4 sts=4 et fo+=w :
